What is the hose connected to the engine block behind the alternator on a 1998 Chevy Tahoe LT 350 Vortec engine?

Answer 1

Chevy Tahoe Heater Return Pipe Hey GMMerlin, I have a leak coming from that threaded fitting for the heater hose. Can this be fixed simply by retightening the fitting or do I need to buy a new one?

You will have to replace it...most likely when you touch it, it will break and leave the threaded part in the intake.. Its a PIA to remove the broken off portion, but you don't have to take the manifold off to do it.

Go to www.thread-saver.com for a new tool to remove the broken part.

if it breaks off you can get the threads out with a small punch and then use wet dry vac. to remove small parts in hole. you can just buy the threaded part and use hose clamp to connect after you cut off the end of hose that is crimped it has a small lock ring that will also go bad or crack not a great design by chev. do it yourself in 10 min or so